Sunken I90 Bridge / South Day Street Park is a shore dive in Lake Washington.

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Dive report for 4/19/26

Visibility: A snowy 5-10 feet, <5 feet in the shallows (high tide)

Went for my first Exploration dive on the sunken bridge structure. Entry was on a bright, sunny morning, but light dropped off rapidly, with essentially no sunlight penetration below ~30 ft. We followed the orange guideline from 35 ft to 65 ft. Visibility became very limited at depth, and we lost the line. Shortly after, we made contact with the wreck structure. Given the low visibility and loss of the line, we made a conservative call to turn the dive at that point. Found 6–7 small fish (unidentified, sheltering within the structure), One small crab-like creature, Lots of metallic debris/garbage scattered around the wreck.

Scuba Jess

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